There are continuing calls to scrap plans for Japan’s 2020 Olympic Games stadium.The venue will be the centrepiece of the Tokyo Games, and has been designed by British architect Zaha Hadid.But the size and cost of the Japanese stadium are the subject of intense debate, as Rupert Wingfield-Hayes explains.

The floating debris from Japan’s devastating tsunami is now halfway across the Pacific Ocean, and scientists expect some of it to reach Hawaii in the next couple of weeks. John Blackstone reports on the impact of the debris on U.S. shores.